Composite polymeric twist tie

ABSTRACT

A twist tie made of two dissimilar polymers forming a composite tying material that may be twisted upon itself forming a closure for a bag, container or bundle. A flat elongated ribbon like thermoplastic substrate ( 20 ) has a thermoplastic monofilament ( 28 ) disposed generally in the middle of one side and is bonded in place forming a homogeneous joint ( 40 ). Another configuration of the monofilament utilizes a pre-formed irregular shape singly or in opposed pairs. A second embodiment utilizes a ribbon of paper ( 26 ) laminated underneath the substrate.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation-in-part of application Ser. No.09/400,254 filed Sep. 21, 1999, now abandoned and a divisionalapplication of the pending continuation-in-part application Ser. No.09/583,021 filed May 30, 2000 U.S. Pat. No. 6,372,068.

TECHNICAL FIELD

The present invention relates to twist ties in general. Morespecifically to a substantially polymeric tie that is comprised of athermoplastic monofilament that is bonded to the center portion of aflat ribbon like thermoplastic substrate.

BACKGROUND ART

Previously, many types of twist ties have been used in endeavoring toprovide an effective means for closing or tying articles such as bags,fastening plants to stakes, securing bundled electric cable and otherrestraining tasks. These ties have included strings, wires, adhesivetape, and ribbon sandwiched onto a metallic wire. The most common typeof tie presently in use today is a pair of ribbons having a wire bondedin between with the ribbon fabricated of either plastic, paper or both.Attempts to eliminate the wire have resulted in unitary extrusionshaving a bulb-shaped central portion even to the extent that a core ofrubber, or the like, is simultaneously extruded in the center. Otherembodiments of tie material include foil strips or a number of strandsof wire in parallel alignment, further attempts have been made to makethe tie completely of thermoplastic material that acts like wire byorienting the plastic with heat and stretching also by adding fillers tothe formulation to add stiffness and malleability.

A search of the prior art did not disclose any patents that readdirectly on the claims of the instant invention, however the followingU.S. patents are considered related:

Patent No. Inventor Issue Date 5,607,748 Feltman Mar. 4, 1997 5,342,687Iwai et al. Aug. 30, 1994 5,154,964 Iwai et al. Oct. 13, 1992 4,797,313Stolk et al. Jan. 10, 1989 4,391,063 Gill,III Jul. 5, 1983 3,409,948Goodwin Nov. 12, 1968 2,108,741 Betner Feb. 15, 1938 Foreign Patents:GB2,060,469 Ward et al. May 7, 1981 (UK)

Feltman in U.S. Pat. No. 5,607,748 teaches a wireless polymeric twisttie that includes a wing portion and one or more leaf portions. Thetwist tie is formed from an extruded non-metallic polymeric compositionin a single indivisible form. The twist tie is fabricated of a materialhaving both a tensile and yield strength of greater than 9,000 poundsper square inch.

U.S. Pat. No. 5,342,687 issued to Iwai et al. is for a non-metalliccoreless twist tie formed by melting polymeric material, extruding thematerial in an elongated form, cooling then drawing the material at arate of at least 2.5 times. The material may include 3 to 50 parts ofglass beads and is formed from a resin having 10 to 60% crystallizationat a temperature of 100 to 250 degrees centigrade.

U.S. Pat. No. 5,154,964 also of Iwai et al. discloses a similar twisttie, as above, with the glass beads added to the polymeric materialhaving a particle size of less than 60 microns.

Stolk et al. in U.S. Pat. No. 4,797,313 teaches a non metallic polymericribbon deformed under tensile stress at 25 degrees centigrade and astrain rate between 0.1 and 0.5 inches per inch per minute. Optionalmaterials are also employed in various polymers.

U.S. Pat. No. 4,391,063 issued to Gill, III discloses a sealing devicefor a balloon utilizing a thin strip of foil attached to a flexibleretaining line. The strip is coated on one side with a pressuresensitive adhesive and folded to form the sealing device and also toattach to the line.

U.S. Pat. No. 3,409,948 issued to Goodwin is for a twist tie thatemploys a plastic ribbon bonded to a paper ribbon in a face-to-facerelationship. The plastic ribbon includes a longitudinal channel and ametallic wire that is disposed within the channel between the ribbonsand a cementitious coating is applied bonding the wire, paper andplastic ribbon together.

UK patent No. GB 2,060,469 issued to Ward is for the deformation ofthermoplastic polymers by solid phase deformation and concomitantorientation of various polymers. The polymer may be filled with glass,asbestos, metal carbon, ceramic whiskers of silicon carbide or the like.The thermoplastic polymer is drawn through a die with tensioninsufficient to cause failure but progressively increasing the strainalong with an elevated temperature of the die.

For background purposes and as indicative of the art to which theinvention is related reference may be made to the remaining citedpatents issued to Betner.

DISCLOSURE OF THE INVENTION

A primary object of the invention is to overcome the problems that areprevalent in today's industry using a metallic wire sandwiched betweentwo ribbons. In the food industry where their use is widespread,typically bread bags, and other polyethylene bags for various edibleproducts, the ties are mechanically attached and have die cut sharp endsthat may inadvertently puncture the bag itself exposing the product tothe atmosphere or even piercing the users fingers or hands.

It has been a common practice in the food industry to automaticallyinspect many packages for the presence of metal, such as sliced foods,as cutting blades may leave traces of metal within or near the product.It may be clearly seen that this automatic procedure makes the use of awire embedded tie extremely objectionable at best and may even eliminatethe possibility of its use entirely.

It is apparent that hazards exist particularly with young children thatcould accidentally ingest the tie which contains a metal in a pliableform and has very sharp ends that could ultimately lead to internal bodydamage.

Also since a conventional tie utilizes metal in its composition theoriginal product package employing this type of tie may not be heated ina microwave oven as high frequency radiation arcs when metal is presentthus necessitating additional and unnecessary handling and preparationof the packaged product by the user.

Another disadvantage to the use of metal in the tie material is thatwhere the ends of the wire that have been cut off or the plating hasbeen worn off by repeated twisting this surface may introduce undesiredoxidization or rust in the presence of moisture.

A further disadvantage of the conventional configuration of the paperand wire tie is that over continued usage the paper covering the wireoften twists off and falls away leaving the wire bare or partiallystripped making it hard to handle and manipulate for further reuse.

There have been numerous attempts to produce a unitary non-metalliccordless thermoplastic twist tie that possesses the advantages of usinga metal wire without all of the drawbacks, however, all of the knownmetal free ties have not as yet proven to be fully satisfactory and arenot widely accepted in the industry at the present time.

An important object of the invention is to utilize a combination ofthermoplastic materials with the core made of a substance that has theproperties of metal wire, in that it is malleable and stays bent to auseable extent, and a ribbon that stretches out of the way withoutbreaking and substantially reverts to its normal body shape whenuntwisted. This composite of dissimilar materials permits the core orfilament to be twisted and retain this union with an attached substrate,forming the wings, expanding and following the filaments orientationwithout yielding.

Another object of the invention is that the twist tie is fabricated oftwo separate elements of dissimilar materials and processes bondedtogether permitting the best properties of each material or process tobe selected without compromise. This composite of separate elementsallows the ribbon to be chosen from a myriad of available sources usingeconomies of number and a monofilament that is either presentlyobtainable or may be fabricated using a conventional yet customizedprocedure. The substrate or ribbon selected has the ability to spreadthe load around the bag or container to which it is closing and also toresist tearing when twisted. The monofilament replacing the wire hasbeen selected for its dead fold properties and its ability to be easilytwisted together and stay connected, also, its repeatability in thisoperation. Many plastic materials are rigid enough to be bent and retaina angular displacement, however, the thermoplastic must not be too stiffor brittle or it will not function properly as its ability to repeatedlyduplicate twisting is of paramount importance. Both thermoplasticmaterials in use with this invention are compatible with each otherpermitting a homogeneous bonding together using conventional procedures.

Yet another object of the invention is the ease of manufacturer as thesubstrate may be purchased on the open market in the film configurationthe proper width with no further modification necessary. Themonofilament may also be purchased in a round rod form the properdiameter ready for orienting. Further the equipment necessary fororienting the monofilament, while special in some minor details, isreadily available as well as the bonding apparatus all of which are wellknown in the art allowing the finished product to be competitivelypriced creating an advantage to the public.

These and other objects and advantages of the present invention willbecome apparent from the subsequent detailed description of thepreferred embodiment and the appended claims taken in conjunction withthe accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partial isometric view of the preferred embodiment twistedonto the open end of a polyethylene plastic food storage bag.

FIG. 2 is a partial isometric view of the preferred embodiment of thetwist tie formed into a loop and twisted together shown by itselfwithout any bag closure.

FIG. 3 is a partial isometric view of the preferred embodiment with thetie illustrated in a flat position, cut to length.

FIG. 4 is a cross sectional view taken along lines 4—4 of FIG. 3illustrating the preferred or round configuration of the monofilamentbonded to the substrate.

FIG. 5 is a cross sectional view taken along lines 5—5 of FIG. 3 showinga triangular shaped configuration of the monofilament bonded to thesubstrate.

FIG. 6 is a cross sectional view taken along lines 6—6 of FIG. 3depicting square shaped configuration of the monofilament bonded to thesubstrate.

FIG. 7 is a cross sectional view taken along lines 7—7 of FIG. 3illustrating an oval shaped configuration of the monofilament bonded tothe substrate.

FIG. 8 is a cross sectional view taken along lines 8—8 of FIG. 3 showinga pair of round monofilaments bonded to the substrate.

FIG. 9 is a partial isometric view of a second embodiment with the paperlaminated underneath the substrate material.

FIG. 10 is a cross sectional view taken along lines 10—10 of FIG. 9.

FIG. 11 is a partial isometric view of an embodiment with themonofilament disposed on top of the substrate material in a sinusoidalwave shape.

FIG. 12 is a partial isometric view of an embodiment with monofilamentsdisposed on top of the substrate material in a pair of duplicatedopposed synchronized sinusoidal wave forms

FIG. 13 is a partial isometric view of an embodiment with themonofilament disposed on top of the substrate material in a reoccurringangle wave form.

FIG. 14 is a partial isometric view of an embodiment with themonofilaments disposed on top of the substrate material in a pair ofopposed duplicated reoccurring angle wave forms with the apex of theangles in alignment.

FIG. 15 is a partial isometric view of an embodiment with themonofilament disposed on top of the substrate material in a singlesquare wave shape.

FIG. 16 is a partial isometric view of an embodiment with themonofilament disposed on top of the substrate material in a truncatedtriangular form.

FIG. 17 is an arbitrary cross sectional of the process apparatus fororienting the monofilament from its original diameter to its final form.

FIG. 18 is an arbitrary cross sectional of the process apparatus forbonding the monofilament to the substrate with an ultrasonic weld.

FIG. 19 is an arbitrary cross sectional of the process apparatus showingthe grooves in the roller for bonding the monofilament to the substrateusing an ultrasonic horn prior to welding.

FIG. 20 is an arbitrary cross sectional of the process apparatus showingthe grooves in the roller for bonding the monofilament to the substrateusing an ultrasonic horn after welding has been completed.

FIG. 21 is a fragmentary partial isometric view of the process apparatusshowing a plurality of grooves in the roller for bonding themonofilament to the substrate using ultrasonic welding.

FIG. 22 is an arbitrary cross sectional view illustrating the preferredor round configuration of the monofilament bonded to the substrate usingultrasonic welding.

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the invention is presented in terms of apreferred and a second embodiment. Both are basically alike except thesecond embodiment has paper laminated underneath the substrate. Thepreferred embodyment is shown in FIGS. 1 through 8 and is comprised of asubstantially flat ribbon like thermoplastic substrate 20, asillustrated best in FIG. 3. The substrate 20 has a first side 22, asecond side 24 and is initially manufactured in film form and slit tothe desired width in a separate procedure. This process is well known inthe art for existing paper or plastic and wire twist ties. The materialfor the substrate is thermoplastic in various forms each operable in theapplication but having its own limitations and characteristics. The sizein thickness and width of the substrate 20 may vary considerablyaccording to the application however there are preferred sizes in theindustry in order to function properly in existing automatic tyingmachines both stationary and hand held.

The following polymers are acceptable for use in the invention:

Polyethylene formed from a polyolefin resin. This polymer is known forits toughness and utility useable from temperatures ranging from −70 to200 degrees F. (−57 to 93 degrees C.) and also its superior chemicalresistance. It has been found that the high density type is rigid andyet flexible enough to have the properties suitable for the applicationand as such is the preferred formulation.

Ethylene vinyl acetate (EVA) has been also found to function suitably asthe ribbon like substrate. This copolymer approaches elastomericmaterials in softness and flexibility therefore is also an idealmaterial for the flat elongated substrate 20.

Oriented polyethylene film available on today's market as a proprietarymaterial is also a useable substance for the substrate 20 in that it issufficiently flexible and will stretch to a limited extent while it isextremely malleable in its nature. While expensive to procure its usefulcharacteristics overshadow this feature creating highly desirableresults.

Polyethylene, laminated to a long fiber extensible paper 26 is wellknown in the art and has been used as the ribbon in a twist tie fordecades. Prior art also uses a pair of ribbons glued or bonded togetherwith a metallic wire imbedded in-between. The second embodiment of theinvention is somewhat similar in that it employs the addition of papermaterial laminated under the thermoplastic substrate however in acompletely different manner as shown in FIGS. 9 and 10. This embodimentutilizes the substrate 20 in the form of a thin film or ribbon ofpolyethylene laminated by any means known in the art such as coating,bonding, gluing, cementing or attaching in any fashion to a long fiberpaper ribbon 26 on the second side 24. This arrangement is unique in itsnature as it possesses all of the desirable features of the existingtwist ties however it is basically different in its non-metallicstructure.

In order to add body and stiffness to the tie and to permit a twist tobe made and retain its joining effect, a thermoplastic monofilament 28is contiguously disposed upon the first side 22 of the substrate 20which in effect replaces the wire that has been used consistently in theexisting art for decades. The monofilament 28 is positioned in thecenter of the substrate 20 which forms wings 30 on either side,preferably of equal proportions.

FIGS. 4-8 illustrate the position and configuration of the monofilament28 which may vary in shape. FIG. 4, as an example, uses a roundmonofilament 32, FIG. 5 employs a triangular shaped monofilament 34, asquare monofilament 36 is depicted in FIG. 6 and a oval shapedmonofilament 38 is utilized in the invention as shown in FIG. 7. It maybe easily seen that the shape of the monofilament 28 may take many formsand still function as intended. Other shapes and configurations may alsofall within the scope of the invention. While a single monofilament 28is described above, a plurality of monofilaments may also be utilizedwith equal ease. One or more monofilament 28 may be used on the firstside 22 and one or more on the second side 24. Even two on a single sideas illustrated in FIG. 8, may be employed since the utility dictates theamount of rigidity, strength and ease of handling required for aspecific application.

The type of material used in forming the monofilament 28 is extremelyimportant as the function of maintaining the twist and permittingre-twisting numerous times, particularly using only thermoplastic, is anessential part of the basis of novelty of the entire invention. It isworthwhile to place some empirical values on the ability of certaintypes of thermoplastic to maintain a bend by actually measuring thememory of the material. At the present time there is no industrystandard that has been developed for this purpose, however, others inthe art have utilized a rather simple test which is called a “dead foldtest”. This test exhibits the specimen materials memory when a sample isfolded 180 degrees, approximately in half, with the remaining portionsessentially parallel with each other. After relaxing for a period of atleast three minutes at the prevailing ambient temperature, the angle ofrelaxation is obtained by measuring the included angle between theparallel portions. It is therefore expedient that the invention mustemploy, a monofilament material that has the characteristics thatexhibit a so called dead fold angle of no greater than 10 degrees whenfolded in half, with the ends touching, and, when relaxed retaining this10 degree angle for a minimum period of three minutes making it entirelyacceptable for this application.

Oriented polyethylene processed by stretching the material through aheated die is an ideal material and is capable of passing the dead foldtest in excess of ten times which is more than expected in normal usageand is capable of being re-tied the same number of times in a typicalbag enclosure configuration.

Acrylonitrile butadiene styrene (ABS) resin is also an acceptablecandidate for the material of the monofilament 28, as it likewise iscapable of meeting or exceeding the requirements of the above describedtests. ABS plastic further has the attributes of being nontoxic,odorless having a good balance of tensile strength, rigidity andtoughness also it possesses both the qualities of being heat andchemical resistant.

It will be noted that while all of the materials described above may begenerically the same, is has been found that in order to maximize thedesirable properties of each material in the composite twist tie thesubstrate 20 and the monofilament 28 are dissimilar in either basicthermoplastic substance, formulation or morphology. The reason for thisdissimilarity is that the industry has tried in vane for years todevelop a simple one piece tie using the same material but thecompromise of characteristics has proven to be too great to besuccessful.

While the monofilament 28 is illustrated in FIG. 3 as being straightwhen it is disposed on top of the substrate 20 it has been found thatother configurations and combinations of shape are even more prone toretain their twist and actually wrap around each end easier and becauseof their original shape allows them to intertwine. FIGS. 11-16illustrate this configuration of the monofilament 28 with FIG. 11depicting a sinusoidal wave shape 42 and FIG. 12 the sane shape onlyduplicated using a pair of opposed synchronized wave forms. FIG. 13shows the monofilament 28 in a reoccurring angle form 44 and FIG. 14 inopposed duplicate of shape with the apex of the angles in alignment. Itshould be noted that the angles may preferably be from 170 to 30 degreesor actually any angle and still function properly also they may beseparated a considerable distance or even be contiguous with oneanother. FIG. 15 illustrates a single square wave 46 and FIG. 16 atruncated triangular form 48 and duplicate pairs may also be utilizedwith equal ease. Only a few of the possible shapes are illustrated anddescribed however this is not meant to limit the configurations of themonofilament as the inventors anticipate that other shapes will alsofunction properly.

Bonding means joining the monofilament 28 to the substrate 20 is in theform of joint 40 created by using either ultrasonic welding, a melt bondor cementing with adhesive.

Ultrasonic welding utilizes electrical energy at a minimum frequency ofapproximately 20,000 Hertz which converts electrical energy tomechanical energy at the same frequency. A resonant section, or socalled horn, transmits the mechanical vibrations into the workpiece.Vibrations travel through the material to the boundary between thesubstrate 20 and the monofilament 28 causing frictional heat thusmelting the two dissimilar materials into a homogeneous joint 40.

Bonding by the melt method is attained by pressing the monofilament 28into the substrate 20 that has been positioned on a heated metal surfacecausing the two materials to be simultaneously melted with the pressuremaintained until the joint 40 is cured.

Cementing with adhesive is accomplished using solvent, dope or chemicalcements. Solvent causes the surfaces of the joined material to go intosolution with the remaining solvent flashing off leaving a permanentbond. Dope cements contain a quantity of thermoplastic materialcompatible with both formulations being bonded plus a solvent, as above,functioning in the same manner. Chemical cements are synthetic resinswhich polymerize in the joint 40 forming the bond. It will be clearlyseen that all of the above approaches to bonding are viable, and yetother methods and materials are not to be eliminated.

The twist tie may be formed in sheets and partially slit or haveperforations for manually separating such as used for trash bags or itmay be manufactured in ribbon form and stored on reels such as thosewell known in the art. The industry uses a wide variety of manufacturingprocesses including handling and storage methods and any and all may beincorporated in the fabrication of the invention.

The process of forming the composite polymeric twist tie, as an example,using the combination of polyethylene material and ultrasonic welding isaccomplished by first orienting the monofilament 28 to improve its deadfold properties and ability to be easily twisted together and stayconnected, also, its repeatability. It has been found that a round rodof high density polyethylene is ideal for the base of this elementeither in its commercially available formulation or by the addition offrom 3.5 to 10% talc, by weight to assist in the drawing and toeliminate adhering together when stored in a roll. In either event thismaterial, is best suited in the form of a substantially round, highdensity polyethylene rod having a diameter of from 0.110 inch (0.279 cm)to 0.075 inch (0.191 cm). The base material is drawn through a heatedtapered die 50 as illustrated in FIG. 17 into a diameter from 0.025 inch(0.064 cm) to 0.035 inch (0.089 cm). The heated tapered die 50 functionsbest at a temperature below the melting point of the high densitypolyethylene with at least 265 degrees F. (129.5 degrees C.) beingideal. The polyethylene monofilament 28 in the rod form is preheated toat least 250 degrees F. (121.1 degrees C.) prior to drawing through thisheated tapered die 50. The material is drawn through the die 50 withonly sufficient pressure to maintain the requisite diameter without afurther reduction in size.

FIGS. 18 through 22, illustrate the next step using a grooved roller 52that contains a number of individual grooves 54 just slightly larger inradius than the monofilament 28, and is supplemented by additionalapparatus to guide at least one thermoplastic monofilament 28 into eachmating groove 54 in the roller 52. Further the twist tie is formed bysimultaneously guiding a flat elongated ribbon like thermoplasticsubstrate 20 on top of the monofilament 28 as shown in FIG. 18. Itshould be noted that the substrate 20 is dissimilar in basic morphologywith the monofilament 28 in order to provide the optimum properties ofthe twist tie as the substrate must be pliable and the monofilamentsuitable for holding a bend. The preferred flat elongated ribbon likethermoplastic substrate 20 in this combination is an polyethylene filmhaving a thickness of from 0.0025 inch (0.0635 cm) to 0.006 inch (0.0152cm). This film may be either the low density or high density typehowever it is not necessarily oriented as its properties are best suitedwhen it is in the more pliable state.

The next step in the process is bonding the monofilament 28 to thesubstrate 20 with an ultrasonic weld forming a composite twist tie suchthat the tie may be twisted upon itself with the monofilament retainingits original configuration and the substrate stretching and bending toconform within a coupled twist. Welding using ultrasonic methods hasbeen discussed previously and is well known in the art. The horn 56 ofthe ultrasonic welder is depicted in FIG. 18 thorough 20 which islocated directly above the roller 52 with the correct gap and powerintensity precisely adjusted to provide a melted joint withoutdestroying the integrity of the relatively thin substrate 20. FIG. 22illustrates this weld which includes a slight radius between theelements which is forged from the parent material of both the substrate20 and the monofilament 28 when they are fused together.

The final step in this process of forming a composite polymeric twisttie on a grooved roller is to slit the substrate 20, with themonofilament 28 attached, into individual strips substantially 0.156inch (0.396 cm) wide each having at least one monofilament weldedthereunto as more than one may be used as depicted in FIGS. 8, 12 and14. When the tie is slit the individual strip is rolled onto a spoolready for use.

It should be realized that the above description of the process is forspecific materials with their appropriate parameters however othermaterials may be used with equal ease such as ethylene vinyl acetate orpolyethylene coated paper etc. for the substrate 20 and acrylonitrilebutadiene styrene etc. for the monofilament 28. If the monofilament hasan irregular pattern the groove 54 in the roller 52 is simply wider orit may actually have the same configuration as the material andmultiples of the monofialment are treated in the same manner. Where thebonding means are not ultrasonically welded the other methods outlinedabove may be easily substituted to accomplish the same end result usingsimilar tooling and procedures.

While the invention has been described in complete detail andpictorially shown in the accompanying drawings, it is not to be limitedto such details, since many changes and modifications may be made in theinvention without departing from the spirit and scope thereof. Hence, itis described to cover any and all modifications and forms which may comewithin the language and scope of the appended claims.

What is claimed is:
 1. A composite polymeric twist tie comprising; asubstantially flat elongated ribbon like thermoplastic substrate havinga first side and a second side, at least one thermoplastic monofilamentcontiguously disposed upon said substrate on the first side formingwings on either side of the monofilament, and bonding means joining saidmonofilament to said substrate into a composite twist tie such that thetie may be twisted upon itself with the monofilament retaining its basicconfiguration and the wings stretching and bending to conform within acoupled twist.
 2. The composite polymeric twist tie as recited in claim1 wherein said substrate and said monofilament are dissimilar in basicthermoplastic substance and formulation.
 3. The composite polymerictwist tie as recited in claim 1 wherein said substrate and saidmonofilament are dissimilar in basic thermoplastic morphology.
 4. Thecomposite polymeric twist tie as recited in claim 1 wherein said flatelongated ribbon like thermoplastic substrate is polyethylene formedfrom a polyolefin resin.
 5. The composite polymeric twist tie as recitedin claim 4 wherein polyethylene is the high-density formulation.
 6. Thecomposite polymeric twist tie as recited in claim 1 wherein said flatelongated ribbon like thermoplastic substrate is ethylene vinyl acetate(EVA) formed from a vinyl polymer.
 7. The composite polymeric twist tieas recited in claim 1 wherein said flat elongated ribbon likethermoplastic substrate is orientated polyethylene film.
 8. Thecomposite polymeric twist tie as recited in claim 1 wherein said flatelongated ribbon like thermoplastic substrate is polyethylene laminatedto a long fiber paper.
 9. The composite polymeric twist tie as recitedin claim 1 wherein said thermoplastic monofilament further exhibits adead fold angle no greater than 10 degrees when said monofilament isfolded in half with the ends touching, and, when relaxed retaining atleast this 10 degree angle for a minimum period of three minutes. 10.The composite polymeric twist tie as recited in claim 1 wherein saidthermoplastic monofilament is oriented polyethylene.
 11. The compositepolymeric twist tie as recited in claim 1 wherein said thermoplasticmonofilament is oriented polyethylene using a heated die during astretching process.
 12. The composite polymeric twist tie as recited inclaim 1 wherein said thermoplastic monofilament is acrylonitrilebutadiene styrene (ABS) resin.
 13. The composite polymeric twist tie asrecited in claim 1 wherein at least one thermoplastic monofilament isdisposed upon said substrate in an irregular pattern.
 14. The compositepolymeric twist tie as recited in claim 13 wherein said thermoplasticmonofilament disposed upon said substrate in an irregular patternfurther comprising a pair of opposed synchronized wave forms.
 15. Thecomposite polymeric twist tie as recited in claim 1 wherein said bondingmeans further comprise a ultrasonic weld utilizing electrical energy ata frequency of substantially 20,000 Hertz.
 16. The composite polymerictwist tie as recited in claim 1 wherein said bonding means furthercomprise a melt bond joining the monofilament to the substrate usingheat, melting the two thermoplastics elements and maintaining contactuntil cooled.
 17. The composite polymeric twist tie as recited in claim1 wherein said bonding means further comprise cementing the monofilamentto the substrate with adhesive, said adhesive containing a solvent andsimilar plastic producing a homogeneous joint when cured.
 18. Acomposite polymeric twist tie comprising; a substantially flat elongatedribbon like thermoplastic substrate having a first side and a secondside, at least one dissimilar thermoplastic monofilament having deadfold properties contiguously disposed upon said substrate on the firstside forming wings on either side of the monofilament, and bonding meansjoining said monofilament to said substrate into a composite twist tiesuch that the tie may be twisted upon itself with the monofilamentretaining its original configuration and the wings stretching andbending to conform within a coupled twist.
 19. The composite polymerictwist tie as recited in claim 18 wherein said dead fold propertiesexhibit a dead fold angle of less than 10 degrees when said monofilamentis folded in half with the ends touching, and, when relaxed retaining atleast this 10 degree angle for a minimum period of three minutes.
 20. Acomposite polymeric twist tie comprising; a substantially flat elongatedribbon like thermoplastic substrate, at least one thermoplasticmonofilament contiguously disposed upon said substrate, and bondingmeans joining said monofilament to said substrate into a composite twisttie such that the tie may be twisted upon itself with the monofilamentretaining its original configuration and the ribbon stretching andbending to conform within a coupled twist.